1423719280 has 20 divisors (see below), whose sum is σ = 3310147512. Its totient is φ = 569487680.

The previous prime is 1423719223. The next prime is 1423719313. The reversal of 1423719280 is 829173241.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8898166 + ... + 8898325.

Almost surely, 2^1423719280 is an apocalyptic number.

1423719280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423719280 is an abundant number, since it is smaller than the sum of its proper divisors (1886428232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423719280 is a wasteful number, since it uses less digits than its factorization.

1423719280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17796504 (or 17796498 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1423719280 is about 37732.2048123350. The cubic root of 1423719280 is about 1124.9713322736.

The spelling of 1423719280 in words is "one billion, four hundred twenty-three million, seven hundred nineteen thousand, two hundred eighty".